gtk:target-list-add-rich-text-targets (tlist info deserializable buffer)

tlist -- a gtk:target-list instance
info -- an unsigned integer ID that will be passed back to the application
deserializable -- if true, then deserializable rich text formats will be added, serializable formats otherwise
buffer -- a gtk:text-buffer object

Appends the rich text targets registered with the gtk:text-buffer-register-serialize-format or gtk:text-buffer-register-deserialize-format functions to the target list. All targets are added with the same info.